<script setup>
import { User, Lock } from '@element-plus/icons-vue'
import { ref } from 'vue'
import router from '@/router'
//控制注册与登录表单的显示， 默认显示注册
const isRegister = ref(false)

//用于注册的数据模型
const registerData = ref({
    username:"",
    password:"",
    rePassword:""
})

//自定义确认密码的参数校验
const rePasswordValid = (rule, value, callback) => {
    if (value == null || value == "") {
        return callback(new Error("请输入密码"))
    }
    if (registerData.value.password !== value) {
        return callback(new Error("两次输入密码不一致"))
    }
}
//用于注册的表单校验模型
const registerDataRules = ref({
    username: [
        {required: true, message: "请输入用户名", trigger: "blur"},
        {min: 5, max: 16, message: "用户名长度必须为5~16位", trigger: "blur"},
    ],
    password: [
        {required: true, message: "请输入密码", trigger: "blur"},
        {min: 5, max: 16, message: "密码长度必须为5~16位", trigger: "blur"},
    ],
    rePassword: [
        {validator: rePasswordValid, trigger: "blur"}
    ]
})

//调用后台接口，完成注册
import {userRegisterService,userLoginService} from "@/api/user.js"
import { ElMessage } from 'element-plus';
const register = async ()=> {
    let result = await userRegisterService(registerData.value)
    /*if(result.code == 0) {
        //成功
        alert(result.message ? result.message : "注册成功")
    }else {
        //失败
        alert("注册失败")
    }*/
    // alert(result.message ? result.message : "注册成功")
    ElMessage.success(result.message ? result.message : "注册成功")
}

//登录部分 绑定数据复用注册表单的数据模型 表单数据校验
//登录函数
import {userTokenStore} from "@/stores/token.js"
const tokenStore = userTokenStore()
const login = async ()=> {
    // //调用接口 完成登录
    let result = await userLoginService(registerData.value)
    /*if(result.code === 0) {
        alert(result.message? result.message : "登录成功")
    }else {
        alert("登录失败")
    }*/
    // alert(result.message? result.message : "登录成功")
    ElMessage.success(result.message? result.message : "登录成功")
    //把得到的token存储到pinia中
    tokenStore.setToken(result.data)
    //跳转到主页 路由完成跳转
    router.push('/')
}
//清空registerData数据模型的数据
const clearRegisterData = () => {
    registerData.value = {
        username:'',
        password:'',
        rePassword:''
    }
}

</script>

<template>
    <el-row class="login-page">
        <el-col :span="12" class="bg"></el-col>
        <el-col :span="6" :offset="3" class="form">
            <!-- 注册表单 -->
            <el-form ref="form" size="large" autocomplete="off" v-if="isRegister" :model="registerData" :rules="registerDataRules">
                <el-form-item>
                    <h1>注册</h1>
                </el-form-item>
                <el-form-item prop="username">
                    <el-input :prefix-icon="User" placeholder="请输入用户名" v-model="registerData.username"></el-input>
                </el-form-item>
                <el-form-item prop="password">
                    <el-input :prefix-icon="Lock" type="password" placeholder="请输入密码" v-model="registerData.password"></el-input>
                </el-form-item>
                <el-form-item prop="rePassword">
                    <el-input :prefix-icon="Lock" type="password" placeholder="请输入再次密码" v-model="registerData.rePassword"></el-input>
                </el-form-item>
                <!-- 注册按钮 -->
                <el-form-item>
                    <el-button class="button" type="primary" auto-insert-space @click="register">
                        注册
                    </el-button>
                </el-form-item>
                <el-form-item class="flex">
                    <el-link type="info" :underline="false" @click="isRegister = false;clearRegisterData()">
                        ← 返回
                    </el-link>
                </el-form-item>
            </el-form>
            <!-- 登录表单 -->
            <el-form ref="form" size="large" autocomplete="off" v-else :model="registerData" :rules="registerDataRules">
                <el-form-item>
                    <h1>登录</h1>
                </el-form-item>
                <el-form-item prop="username">
                    <el-input :prefix-icon="User" placeholder="请输入用户名" v-model="registerData.username"></el-input>
                </el-form-item>
                <el-form-item prop="password">
                    <el-input name="password" :prefix-icon="Lock" type="password" placeholder="请输入密码" v-model="registerData.password"></el-input>
                </el-form-item>
                <el-form-item class="flex">
                    <div class="flex">
                        <el-checkbox>记住我</el-checkbox>
                        <el-link type="primary" :underline="false">忘记密码？</el-link>
                    </div>
                </el-form-item>
                <!-- 登录按钮 -->
                <el-form-item>
                    <el-button class="button" type="primary" auto-insert-space @click="login">登录</el-button>
                </el-form-item>
                <el-form-item class="flex">
                    <el-link type="info" :underline="false" @click="isRegister = true;clearRegisterData()">
                        注册 →
                    </el-link>
                </el-form-item>
            </el-form>
        </el-col>
    </el-row>
</template>

<style lang="scss" scoped>
/* 样式 */
.login-page {
    height: 100vh;
    background-color: #fff;

    .bg {
        background: url('@/assets/logo2.png') no-repeat 60% center / 240px auto,
            url('@/assets/login_bg.jpg') no-repeat center / cover;
        border-radius: 0 20px 20px 0;
    }

    .form {
        display: flex;
        flex-direction: column;
        justify-content: center;
        user-select: none;

        .title {
            margin: 0 auto;
        }

        .button {
            width: 100%;
        }

        .flex {
            width: 100%;
            display: flex;
            justify-content: space-between;
        }
    }
}
</style>